They went from door to door to collect money.
问题描述:
They went from door to door to collect money.
A.From the door to another door
b.from door to door
c.from the door to the door
d.from this door to that door 为什么在选择题中选B,而不是其他三个
答
doorto door挨家挨户
day after day一天天
year by year年复一年
mouth to mouth口对口
他们都表强调,重复使用加强语气,中间只需要一介词即可.